Once you’ve settled in, head to La Boqueria on La Rambla for an easy first meal. It’s best around 11:30–12:30, before the busiest lunch rush; most stalls trade roughly 8:00–20:30, though individual hours vary. Choose a few small plates—grilled seafood, tortilla, jamón, or fruit—and keep the first stop casual at about €15–30 per person. From Plaça de Catalunya, it’s a short walk; from elsewhere, the Liceu metro station is right outside. Keep phones and wallets secure in the market and on La Rambla.
Spend the next couple of hours wandering the Gothic Quarter, following the lanes around Carrer del Bisbe and Barcelona Cathedral. The cathedral generally opens to visitors from late morning, with a midday break and a modest entrance fee, so check the official schedule before going in; otherwise, the surrounding squares and lanes are free to explore. Walk slowly rather than trying to map every turn—Plaça de Sant Felip Neri and the quieter streets near the old Roman walls are especially atmospheric. Continue toward El Born, about 15 minutes on foot, for Palau de la Música Catalana. A guided visit usually lasts around 45–50 minutes and costs approximately €20; reserve ahead because tours and concert schedules can fill, particularly in December.
For your first-night dinner, settle into El Xampanyet, a beloved, lively traditional tapas bar near Carrer de Montcada. It usually opens in the evening around 19:00 and does not typically take reservations, so arriving near opening is the easiest strategy. Order conservatively at first—anchovies, cured meats, cheese, and small hot dishes with cava—and expect roughly €25–45 per person. After dinner, walk 10–15 minutes to Arc de Triomf, then continue through Parc de la Ciutadella for an easy 45-minute finish. The park is generally open until around 22:30 in winter, though paths are darker after sunset; if it feels too quiet, stay on the lit Passeig de Lluís Companys and return by taxi or metro.
Start early at Sagrada Família, ideally with a timed entry around 9:00. Allow about two hours to appreciate the light through the stained glass, the extraordinary façades, and Gaudí’s forest-like interior before the larger tour groups arrive. Tickets commonly cost around €26–40 depending on access and are best bought online well ahead of December. From there, take the L5 metro from Sagrada Família to Sant Pau | Dos de Maig—roughly 10 minutes—then walk a few minutes to Sant Pau Recinte Modernista. Spend about 1½ hours wandering through the former hospital’s pavilions and gardens; it generally opens from around 9:30, with seasonal hours and last admission worth checking before you go. A coffee or light snack around Avinguda de Gaudí makes an easy break between the two visits.
Continue by taxi—about 15 minutes, traffic permitting—to Park Güell, where the timed monumental-area ticket is the important detail; allow two hours for the mosaic terraces, curved bench, and hilltop views. Admission is usually around €10–18, and the park’s December hours are shorter than summer hours, so book an early-afternoon slot rather than leaving it late. Afterward, take a taxi or the 24 bus toward Passeig de Gràcia for Casa Batlló. Its immersive visit takes roughly 1½ hours and usually costs around €35–45; reserve a late-afternoon entry so you can see the interiors change as the winter light fades. This is a full sightseeing day, so keep lunch casual in Gràcia or near Passeig de Gràcia rather than adding another formal stop.
Head down La Rambla to La Isabela at Hotel 1898 for a celebratory drink around sunset. The rooftop is a polished, central place to toast the anniversary, with views over the city and a relaxed hour before dinner; expect roughly €15–25 per cocktail, and confirm December rooftop access because weather or private events can affect availability. From there, take a taxi up to Terraza Martínez on Montjuïc—usually 15–20 minutes, though allow longer in evening traffic—for dinner with broad views toward the port and Barcelona skyline. Budget about €45–75 per person and reserve well in advance, specifically asking whether the terrace section will be open in December. The restaurant is on a hill rather than in the nightlife center, so a taxi is the simplest return option after dinner.
Begin at Barceloneta Beach around 9:30, when the promenade is quiet and the winter light is lovely. Walk north along the sand and seafront for about an hour; December can be breezy, so bring a warm layer, but the open views toward the Mediterranean make this a refreshing final morning. From Barceloneta, take the L4 metro from Barceloneta station to Jaume I—roughly 10 minutes, plus a short walk—to reach the Picasso Museum in El Born. Reserve a timed ticket in advance; a standard visit is usually around €12–17, and allow 1½–2 hours for the collection, which is especially strong on Picasso’s early work. The museum is generally open Tuesday–Sunday, with hours varying by season, so check the December timetable before setting out.
Afterward, stay in El Born and walk a few minutes to Santa Maria del Mar, one of the city’s most graceful Gothic interiors. Spend about 45 minutes looking up at the soaring nave and the remarkable stained glass; entry to the basilica is commonly around €5–10, while tower access, when available, costs extra. Then continue on foot through the narrow streets to Mercat de Santa Caterina for lunch beneath its unmistakable rippled, colorful roof. Choose from market counters and nearby stalls—seafood, Catalan dishes, or a simple plate of jamón and cheese—and budget roughly €15–30 per person. Market hours can change, but it is typically open Tuesday–Saturday from morning into the afternoon, so aim to arrive around 1:30 before the liveliest counters begin closing.
Leave El Born by taxi or rideshare for Bunkers del Carmel; allow 20–30 minutes depending on traffic. Public transport is possible via metro and bus, but the final uphill approach is slower and less convenient. Arrive 60–90 minutes before sunset to secure a good viewpoint and enjoy the gradual change from golden rooftops to city lights. The site is free, though access areas and hours can occasionally be restricted, so check local signage on the day. Bring water and a warm jacket—the hilltop is noticeably colder than the beach—and carry a small snack if you want to linger. Sunset in Barcelona falls around 5:20 p.m. in December; leave before it becomes fully dark if you are uncomfortable walking the steep, dimmer streets back down.